Year	% of total merchandise exports
1960	9.122257053291536
1961	10.778097982708934
1962	6.694670517196115
1963	6.740962217994021
1964	7.179362375273788
1965	6.2967855570233375
1966	5.2181002853648595
1967	4.91866028708134
1968	7.09820528332325
1969	7.090045628084551
1970	8.581284303896412
1971	9.705452019567563
1972	9.383967001434721
1973	12.696350985932611
1974	13.780385910859291
1975	15.718915523321389
1976	10.881254591461921
1977	11.521586571651898
1978	13.597370985574505
1979	16.155766880943524
1980	18.779043030015995
1981	35.34051873763478
1982	38.49785273298021
1983	36.852526739810436
1984	33.40871047606764
1985	32.97595351549148
1986	26.29816307041921
1987	21.497714308040948
1988	20.39450285969053
1989	16.714711177679607
1990	12.767418499365494
1991	13.663646057884366
1992	12.635573369716205
1993	10.377844832894933
1994	9.253131928511475
1995	9.124290947336624
1996	9.431502071757311
1997	7.420062695685882
1998	8.735550172468901
1999	7.8109539685769915
2000	6.525383655578502
2001	7.044392090195768
2002	6.372393890529391
2003	8.070389226088269
2004	9.371632875619577
2005	10.168594630024486
2006	9.572533030723513
2007	9.52625440636762
2008	10.94629690820817
2009	17.2426015076902
2010	17.159196051210454
2011	16.161298736166398
2012	21.604921996300718
2013	20.445834256042506
2014	19.513968291642893
2015	17.954633419877865
2016	17.47608687477805
2017	15.869671024043283
2018	15.114221128414112
2019	15.811146156951441
2020	14.720968294250108